Colocasiomyia colocasiae (Duda, 1924)

Takano, Kohei Takenaka, Gao, Jian-Jun, Hu, Yao-Guang, Li, Nan-Nan, Yafuso, Masako, Suwito, Awit, Repin, Rimi, Pungga, Runi Anak Sylvester, Meleng, Paulus Ak, Kaliang, Clement Het, Chong, Lucy & Toda, Masanori J., 2021, Phylogeny, taxonomy and flower-breeding ecology of the Colocasiomyia cristata species group (Diptera: Drosophilidae), with descriptions of ten new species, Zootaxa 5079 (1), pp. 1-70 : 20-21

publication ID	https://doi.org/ 10.11646/zootaxa.5079.1.1
publication LSID	lsid:zoobank.org:pub:2B118B81-7353-4A2C-A892-5466DFC83230
DOI	https://doi.org/10.5281/zenodo.5786145
persistent identifier	https://treatment.plazi.org/id/03D75C2D-4579-2E2B-FF52-674AB715B7F9
treatment provided by	Plazi
scientific name	Colocasiomyia colocasiae
status

Treatment

1. Colocasiomyia colocasiae View in CoL species subgroup

Colocasiomyia colocasiae View in CoL species subgroup: Takenaka et al., 2006: 84.

Diagnosis. Epandrial phragma prominent (wider than epandrial anteroventral corner), somewhat shell-shaped expansion on antero-subapical margin (ch.33-1; Fig. 10A View FIGURE 10 ). Surstyli absent (ch.34-2; Fig. 10A View FIGURE 10 ). Lateral pieces of subepandrial sclerite less sclerotized, small, somewhat triangular plate-like (ch.37-1; Fig. 10A View FIGURE 10 ). Cercus nearly entirely oval (ch.38-1; Fig. 10A View FIGURE 10 ). Phallal sheath prominently projected anterodorsad at dorsobasal corner in lateral view (ch.41-2; Fig. 11A View FIGURE 11 ).

Shared characters. Supracervical setae distally more or less curved, longer than inner occipital setae (ch.1-0; Fig. 3A View FIGURE 3 ). Additional, interfrontal setulae on fronto-orbital plate absent (ch.2-1; Fig. 3B View FIGURE 3 ). Distance between antennal sockets wider than half of socket width (ch.4-0; Fig. 3C View FIGURE 3 ). Cibarial, medial sensilla in parallel rows narrower than sensilla campaniformia (ch.5-2); posterior sensilla present (ch.6-0). Anterior dorsocentral setae situated behind transverse suture (ch.7-0; Fig. 5A View FIGURE 5 ). Additional dorsocentral setae on presutural area absent ( Fig. 5A View FIGURE 5 ). Prescutellar acrostichal setae absent (ch.8-1; Fig. 5A View FIGURE 5 ). Acrostichal setulae in 4 rows (ch.9-0; Fig. 5A View FIGURE 5 ). Katepisternal setae large; posterior one as long as or longer than longest, postpronotal seta (ch.10-0; Fig. 5E View FIGURE 5 ). Basal scutellar setae short; posterior tip not reaching to half of apical scutellar setae (ch.11-0; Fig. 5A View FIGURE 5 ). Apical scutellar setae nearly equidistant from each other and from basal scutellar seta ( Fig. 5A View FIGURE 5 ). Apically blunt, heavy, peg-like costal setae in middle row interspersed with weak, trichoid ones (ch.12-1; Fig. 6B View FIGURE 6 ). Fore tarsomere I with patch covered with only minute pubescence on anterodorsal portion (ch.13-0; Fig. 7A View FIGURE 7 ). Mid tibia with 2 or more apical setae (ch.15-0; Fig. 7C View FIGURE 7 ). Male abdominal sternites IV and V and female sternites III–VI longer than wide (ch.17–22-1; Fig. 8C,D View FIGURE 8 ). Male abdominal sternite VI not pubescent at least partly (ch.23-0; Fig. 9B–D View FIGURE 9 ), with single process longer than 0.05 mm and not bearing prominent seta on apex but small setae on submedial to distal portion (ch.24-2, 25–27-0; Fig. 9B–D View FIGURE 9 ). Epandrium roundish on posteroventral margin (ch.30-1), with seta as long as width of epandrium and short setae as thick as cercal setae on posteroventral portion (ch.31,32-0; Fig. 10A View FIGURE 10 ). Median piece of subepandrial sclerite broad, somewhat quadrate plate (ch.36-0; Fig. 10A,B View FIGURE 10 ). Cercus wider than 1/2 cercal length (ch.39-1; Fig. 10A View FIGURE 10 ). Phallal sheath nearly straight, apically vertically bilobed, as thick as wide, without pubescence (ch.40-0, 42–44-1; Fig. 11A,B View FIGURE 11 ). Phallapodeme more or less sclerotized, slightly oblique to axis of phallal sheath, longer than 1/2 of phallal sheath (ch.45-1, ch.46,47-0; Fig. 11A,B View FIGURE 11 ). Epiproct and hypoproct pubescent (ch.48-0; Fig. 12A,B View FIGURE 12 ). Oviscapt not longer than phallus (apodeme + sheath), with ovisensilla on portion occupying 1/2 or more in length of oviscapt; distal portion differentiated into more or less narrow process from basal, broad portion with dense, fine wrinkles (ch. 49–51-0; Fig. 12A View FIGURE 12 ).

Included species. Colocasiomyia colocasiae , C. alocasiae , C. iskandari , C. steudnerae and C. stamenicola . A total of 14 putatively new species probably belong to this subgroup ( Fartyal et al. 2013; Toda unpublished data; Fig. 14 View FIGURE 14 ). The species-status determination and description of them will be done elsewhere.